Looks like a little of both...
From the article:
“Without life vests or rafts, our aircraft must stay within 50 nautical miles of land,†says Scott Ridge, managing director of technical operations and support. “Along with equipping our –800s with life rafts, ETOPS will give us the ability to fly the most direct over water routes to Cancun, saving time and money. It will also allow us to apply for additional markets to Cancun under a new bilateral agreement between the U.S. and Mexico. Although we have not currently decided upon any new markets, we move forward with the ETOPS process for our 737-800s. This will eliminate the time and expense of retrofitting existing aircraft in the future, putting us in position to take advantage of new opportunities, including Hawaii.â€